User interface for a computer display screen



FIG. 1 is a front view of a user interface for a computer display screen;

FIG. 2 is a front view of an alternative configuration thereof; and,

FIG. 3 is a front view of an alternative configuration thereof.

The broken line showing of the display screen is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for user interface for a computer display screen, as shown and described. 